chore: replace chalk with picocolors and remove rimraf

- Replace chalk (≈44KB) with picocolors (≈3KB) in test utility
- Replace rimraf prebuild script with native fs.rmSync (Node >=18)
- Net removal of 2 dependencies

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: roli-lpci

package.json

@@ -9,7 +9,7 @@
     "node": ">=18"
   },
   "scripts": {
-    "prebuild": "rimraf dist",
+    "prebuild": "node -e \"fs.rmSync('dist',{recursive:true,force:true})\"",
     "build": "npm-run-all --parallel build:main build:bundle:main build:bundle:pure",
     "build:bundle:main": "dotenv -e .bundle.main.env kcd-scripts build -- --bundle --no-clean --no-ts-defs",
     "build:bundle:pure": "dotenv -e .bundle.main.env -e .bundle.pure.env kcd-scripts build -- --bundle --no-clean --no-ts-defs",
@@ -52,14 +52,13 @@
     "@testing-library/jest-dom": "^5.11.6",
     "@types/react": "^19.0.0",
     "@types/react-dom": "^19.0.0",
-    "chalk": "^4.1.2",
     "dotenv-cli": "^4.0.0",
     "jest-diff": "^29.7.0",
     "kcd-scripts": "^13.0.0",
     "npm-run-all2": "^6.2.6",
+    "picocolors": "^1.1.1",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
-    "rimraf": "^3.0.2",
     "typescript": "^5.9.3"
   },
   "peerDependencies": {

tests/failOnUnexpectedConsoleCalls.js

@@ -25,7 +25,7 @@ SOFTWARE.
 /* eslint-disable prefer-template */
 /* eslint-disable func-names */
 const util = require('util')
-const chalk = require('chalk')
+const pc = require('picocolors')
 const shouldIgnoreConsoleError = require('./shouldIgnoreConsoleError')
 
 const patchConsoleMethod = (methodName, unexpectedConsoleCallStacks) => {
@@ -69,23 +69,23 @@ const flushUnexpectedConsoleCalls = (
   if (unexpectedConsoleCallStacks.length > 0) {
     const messages = unexpectedConsoleCallStacks.map(
       ([stack, message]) =>
-        `${chalk.red(message)}\n` +
+        `${pc.red(message)}\n` +
         `${stack
           .split('\n')
-          .map(line => chalk.gray(line))
+          .map(line => pc.gray(line))
           .join('\n')}`,
     )
 
     const message =
-      `Expected test not to call ${chalk.bold(
+      `Expected test not to call ${pc.bold(
         `console.${methodName}()`,
       )}.\n\n` +
       'If the warning is expected, test for it explicitly by:\n' +
-      `1. Using the ${chalk.bold('.' + expectedMatcher + '()')} ` +
+      `1. Using the ${pc.bold('.' + expectedMatcher + '()')} ` +
       `matcher, or...\n` +
-      `2. Mock it out using ${chalk.bold(
+      `2. Mock it out using ${pc.bold(
         'spyOnDev',
-      )}(console, '${methodName}') or ${chalk.bold(
+      )}(console, '${methodName}') or ${pc.bold(
         'spyOnProd',
       )}(console, '${methodName}'), and test that the warning occurs.`